Warren Buffett says don't make these mistakes

You can do worse than billionaire investor Warren Buffett -- and most people do -- so USA Today got him to list three big mistakes amateur investors make.

Buffett said amateur investors should avoid trying to time the market, trying to mimic high-frequency traders, and paying too much in fees and expenses.

So what's the right move to make? "Buy an index fund, preferably over time, so you end up owing good businesses at a reasonable average price," Buffett told the newspaper. "And that is all you have to do."